Carrie Underwood and Steven Tyler are all smiles backstage at the CMT Crossroads Live from the Pepsi Super Bowl Fan Jam held at the Indiana State Fairgrounds on Saturday (February 4) in Indianapolis, Indiana.

The 28-year-old American Idol alum and current Idol judge previously hit the stage together at last year’s Academy of Country Music Awards where they sang “Undo It” and “Walk This Way.”

Carrie Underwood and Steven Tyler rehearse for their CMT Crossroads special on Thursday (February 2) at Indiana State Fairgrounds in Indianapolis, Indiana.

The 28-year-old American Idol alum and current Idol judge previously hit the stage together at last year’s Academy of Country Music Awards where they sang “Undo It” and “Walk This Way.”

“I just love to sing and I love [Carrie's] stuff. A good friend of mine writes songs with her,” Steven recently told the Associated Press.

“When I heard ‘Undo It,’ I said, ‘What is that?’ That is an Aerosmith song, right? I am going to finish recording that with you. He said, ‘No, I wrote that with Carrie, it is coming out in a week,’” he added. “I met her and it was all over after that, once I looked into her eyes. She opened her mouth and sang and she is that good. I loved singing with her.”

Jennifer Lopez lets out a smile at the 2012 Winter TCA tour held at The Langham Huntington on Sunday (January 8) in Pasadena, Calif.

The 42-year-old singer, who paired her 3.1 Phillip Lim skirt and top with Lisa Zunino earrings and Pomellato bracelets, spoke onstage during the American Idol panel along with her fellow judges Steven Tyler and Randy Jackson. Ryan Seacrest joined the trio for the talk.

“The dazzling ring is an original design by Rodkin. It is a 5 carat brilliant cut diamond set on a micro pave diamond and platinum band. [Steven] has been a fan of Rodkin‘s work for many years,” Us Weekly reports.